Dock-bolt



NITED STATES PATENT OFC.

AMOS WESTGOTT, OF SYRACUSE, NEW YORK.

DOOR-BOLT.

Speccation of Letters Patent No. 17,464,'dated June 2, 1857.

To all whom it may concern:

Be it known that I, AMos WEs'rcoTT, of the city of Syracuse, county ofOnondaga, and State of New York, have invented a new and usefulImprovement in Door-Bolts, of which the following is a full description,reference being had to the accompanying drawings, which constitute apart of this specification.

My invention consists essentially in the hereinafter described method ofsupporting and guiding the inner end of a mortise bolt, by connecting itwith the shaft of a knob, by which arrangement, I am enabled to dispensewith any outer casing, or frame work for the purpose of eithersustaining or guiding the said rear or inner end of the bolt.

rlhe following is a description of the several parts of this device, andthe ends they respectively serve" lst. The face plate A is made with asocket B B projecting toward, and nearly to the center of the door.Through this socket, the knob shaft C works, and it being firmly screwedto the door serves as the basis of all the movable parts, but when aknob is used upon both sides of the door, or when the bolt is used as amortise catch, the socket B, B, above described, may be dispensed 3d.The cog wheel E is made fast to the knob shaft C, so as to be in contactwith the inner end of the socket B B and thus prevent the knob frombeing drawn out or moved endwise. At a point in the knob shaft,corresponding to t-he center of the door there is cut a neck or grooveF, which is so fitted to the slot G, in the bolt H, as to support it inevery direction, and to guide the inner end of the bolt H when it ismoved back and forth by the action of the wheel E.

4th. The bolt H is made with'a slot G, which works upon the neck of thelmob shaft C. Upon both sides of the bolt are projecting pins I I tomake it right and left, corresponding to, and acted upon by the cogs ofthe wheel E.

5th. The plate K, is made with a hole fitting the outer end of the boltH and when screwed to the edge of t-he door L serves to sustain andguide this end of the bolt.

I do not claim any particular method of moving door bolts z-But That Ido claim as my invention, and d esire to secure by Letters Patent is-The supporting and guiding of the rear or inner end of the bolt- H, byconnecting it with the knob shaft C, substantially in the manner, andfor the purpose herein set forth.

AMOS WESTCOTT.

Witnesses:

R. F. STEVENS, PALMER SHAW.

